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Porphyrinic Acceptors forFullerene-Free MolecularPhotovoltaics 被引量:1
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作者 Jorge Labella Juan Laforga-Martin Tomás Torres 《CCS Chemistry》 CSCD 2024年第2期276-296,共21页
Over the past few years,the development of nonfullerene acceptors(NFAs)has become a prominent focus in both organic and perovskite solar cell(OSCs and PSCs,respectively)research fields.In this context,porphyrinoids,co... Over the past few years,the development of nonfullerene acceptors(NFAs)has become a prominent focus in both organic and perovskite solar cell(OSCs and PSCs,respectively)research fields.In this context,porphyrinoids,compounds structurally related to porphyrins,have emerged as promising solar cell candidates.In contrast to the widely used fullerene acceptors,porphyrinoids exhibit strong,broad absorption properties across the UV–vis/NIR spectrum,which can be easily tuned through chemical modifications.Furthermore,they can be prepared and derivatized using cost-effective and straightforward methodologies,allowing for convenient adjustments in thin-film morphology,processability,supramolecular organization,and energy levels.Additionally,these compounds offer higher thermal and photochemical stability,resulting in longer device lifetimes compared to their fullerene-based counterparts.In this review,we outline the utilization of porphyrinoids as NFAs in OSCs and PSCs,discussing essential aspects such as design guidelines,molecular properties,and device configuration.Our goal is to inspire and further promote the development of n-type porphyrinoids,which have not yet fully unleashed their potential. 展开更多
关键词 fullerene-free molecular photovoltaics nonfullerene acceptors porphyrinic acceptors n-type porphyrinoids organic and perovskite solar cells
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氰基取代的螺芴氧杂蒽衍生物:激基复合物发光与性质调控 被引量:3
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作者 曹洪涛 李波 +6 位作者 万俊 余涛 解令海 孙辰 刘玉玉 王锦 黄维 《化学学报》 SCIE CAS CSCD 北大核心 2020年第7期680-687,共8页
热活化延迟荧光分子因具有高效发光、价格低廉等优点,在发展有机发光二极管方面显示出巨大潜力.与单分子相比,激基复合物容易实现小的单线态-三线态能隙差,在开发延迟荧光材料方面备受关注.然而,相应受体材料的种类仍较为稀少,且激基复... 热活化延迟荧光分子因具有高效发光、价格低廉等优点,在发展有机发光二极管方面显示出巨大潜力.与单分子相比,激基复合物容易实现小的单线态-三线态能隙差,在开发延迟荧光材料方面备受关注.然而,相应受体材料的种类仍较为稀少,且激基复合物延迟荧光性质与受体材料结构之间的关系还需深入探讨.本工作设计合成出两个新型的基于螺芴氧杂蒽的电子受体材料(CNSFDBX和DCNSFDBX).结果表明,它们与给体材料TCTA掺杂后均呈现激基复合物发射,其中TCTA:DCNSFDBX掺杂体系显示更高的发光效率,其原因归结为双氰基取代使得DCNSFDBX具有更强的接收电子的能力.该工作为开发新型电子受体材料用于激基复合物延迟荧光提供了思路. 展开更多
关键词 螺芴氧杂蒽 激基复合物发光 热活化延迟荧光 空间位阻 氰基取代
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